分析化学自主设计实验的实践与探索:测定磁介质铁路客票中铁的含量  

Exploration and Practice of Self-Design Experiments in Analytical Chemistry: Determination of Iron Content in Magnetic Medium Railway Ticket

作　　者：李娇[1] 骆睿昊 金谷 LI Jiao;LUO Rui-Hao;JIN Gu(National Demonstration Center for Experimental Chemistry Education,USTC,Hefei 230026,China;School of Chemistry and Materials Science,USTC,Hefei 230026,China)

机构地区：[1]中国科学技术大学化学国家级实验教学示范中心,安徽合肥230026 [2]中国科学技术大学化学与材料科学学院,安徽合肥230026

出　　处：《化学教育（中英文）》2021年第24期44-49,共6页Chinese Journal of Chemical Education

基　　金：安徽省高水平教学团队(2018jxtd118);安徽省级质量工程项目(2018jyxm1040);中国科学技术大学本科教学改革项目(2019xjyxm040);研究生教学改革项目(2019jyy12)。

摘　　要：介绍了一个自主设计实验"测定磁介质铁路客票铁的含量",该实验设计选取生活中熟悉又"陌生"的铁路客票为研究对象,以经典验证型实验"无汞盐法测全铁"为理论和实验基础,学生自行查阅文献、设计实验方案、分析讨论方案,再进行具体实验探究,分析实验结果,并撰写小论文。该教学实验项目的实施能有效促进理论知识体系和实验操作技能的深度融合,提高学生的创新能力和综合素质。This paper introduces a self-designed experiment, determination of iron content in magnetic medium railway ticket. The experiment design selects railway tickets in life as the research object, and takes the classical verification experiment "determination of total iron by none-mercury method" as the theoretical and experimental basis. Students are required to consult the literature, design the experimental schemes, discuss the schemes, carry out specific experiments, analyze the results, and write short papers. The implementation of the teaching experiment project can effectively promote the deep integration of theoretical knowledge system and experimental operation skills, and improve students’ innovative ability and comprehensive quality.

关 键 词：分析化学实验 自主设计实验 磁介质铁路客票 无汞盐法测铁 综合实验能力 

分 类 号：O65-4[理学—分析化学] G642.423[理学—化学]